Originally Posted by Garrett Smith
This can indicate B12 deficiency.
Hmm even if my B12 level is showing as normal on the standard blood work?
(I don't have the test result in front of me but it did test for B12 and came out not deficient- I will check the actual number tomorrow)
Is this a case of (a) the standard test used is a poor indicator of actual B12 levels; (b) the normal accepted "not deficient levels" are set too low; or (c) some people just need much higher levels of B12?